Demo of a proof-of-concept for using the SignalR library with the Esri JavaScript API to provide front-end real-time functionality. Source code for this project is available on GitHub https://github.com/AmrEldib/RealTimeGisWithSignalR More info are on my blog http://www.AmrEldib.com You contact me on Twitter @AmrEldib

1. REAL-TIME GIS USING
SIGNALR AND JSAPI
A PROOF-OF-CONCEPT
AMR ELDIB
Esri Canada
Esri International Developer Summit 2013
Technical Sessions
#DevSummit March 28, 2013 8:30am – Palm Springs Convention Center

2. WHO DOESN’T LIKE COMMAND CENTERS
William Shatner as Captain James T. Kirk commanding the bridge of the USS Enterprise Star Trek during the third season (1968–1969)

3. THESE GUYS DON’T
Chris O'Dowd as Roy Trenneman, Richard Ayoade as Maurice Moss, and Katherine Parkinson as Jen Barber from the British TV show “The IT Crowd”

4. COMMAND CENTERS TODAY
Anton Yelchin as Pavel Chekov, Chris Pine as Captain James T. Kirk, and John Cho as Hikaru Sulu from the 2009 J. J. Abrams’ Reboot of StarTrek

5. COMMAND CENTERS TODAY
Just some cubicles with computers.

6. SIGNALR
 Incredibly simple to add real-time.
 Start with WebSockets, and gracefully fallback to other technologies
when it’s not available.
WebSockets > Server-sent Events > Forever Frame > Long Polling
 Existing SignalR Samples
 Jabbr a Chat Server.
 ShootR a Multiplayer Shooter Game.

7. SIGNALR
OPEN SOURCE SUPPORTED

8. HOW IT WORKS
Inherits Microsoft.AspNet.SignalR.Hub
Public methods are callable from client
Clients.All.myFunction
Override event handlers to handle clients
activities
(connecting, disconnecting, etc.)
var proxy = $.connection.myHubClass
proxy.client.myFunction = myFunction
proxy.server.myMethod

9. SHOW ME THE CODE
Callable
from Inherits SignalR.Hub
client-side
Calling client function

10. SHOW ME THE CODE
Client- Reference to Proxy
function
callable
from
Server
Connection ID

11. SHOW ME THE CODE

12. SEE IT IN ACTION
Click the screenshot to play video

13. SCENARIOS
CLIENT-TO-CLIENT SERVER-TO-CLIENT

14. THANK YOU
AmrEldib.com
bit.ly/GisSignalR
@AmrEldib
bit.ly/FreeSignalRBook
Esri International Developer Summit 2013
Technical Sessions
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